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svetoff [14.1K]
3 years ago
11

300% of what number is 75?.

Mathematics
2 answers:
earnstyle [38]3 years ago
8 0

Answer:

25

Step-by-step explanation:

300% * x = 75

300/100 * x = 75

x = 75 * 100/300

x = 25

Nataly [62]3 years ago
4 0

Answer:

25

Step-by-step explanation:

Find the number by dividing 75 by 3, since 75 is the number tripled.

75/3

= 25

So, 300% of 25 is 75.

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Solve systems of equations for y and x: <br><br> −5y + 8x = −18<br><br> 5y + 2x = 58​
Natali5045456 [20]

Answer:

(4, 10)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Equality Properties<u> </u>

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)
  • Coefficients
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

-5y + 8x = -18

5y + 2x = 58

<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Elimination</em>

  1. Combine 2 equations:                                                                                      10x = 40
  2. [Division Property of Equality] Divide 10 on both sides:                                x = 4

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Substitute in <em>x</em> [Original equation]:                                                                  -5y + 8(4) = -18
  2. Multiply:                                                                                                             -5y + 32 = -18
  3. [Subtraction Property of Equality] Subtract 32 on both sides:                      -5y = -50
  4. [Division Property of Equality] Divide -5 on both sides:                                y = 10
7 0
3 years ago
the chorus has 35 members. which expression represents the number of ways a group of 6 members can be chosen to do a special per
zimovet [89]
You have to choose 6 members from the group of 35 people. So there are \binom{35}{6} ways to do it.
3 0
3 years ago
Read 2 more answers
What is the volume of this square pyramid?
maks197457 [2]

Answer: V = (1/3)a2h.

Step-by-step explanation: Square Pyramid Formulas derived in terms of side length a and height h: Volume of a square pyramid

4 0
3 years ago
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Could someone explain to me how to solve these questions?
Nina [5.8K]

Answer:

you combine the numbers that are the same and see the signs if it's positive with the negative, it's going to be negative

3 0
2 years ago
Can anyone tell me what’s the answer??
maks197457 [2]

Answer:

x = 10

y = 25

Step-by-step explanation:

if you add the equations as they are then the 'y-term' is eliminated:

60x = 600

x = 10

substitute x=10 to find value of 'y':

40(10) + 4y = 500

400 + 4y = 500

4y = 100

y = 25

Check:

20(10) - 4(25) should equal 100

200 - 100 = 100

100 = 100

5 0
2 years ago
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